The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 29, 1986
Filed:
Aug. 28, 1984
Akira Fujimura, Saitama, JP;
Yoshinori Sato, Asaka, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An air-fuel ratio control system for an internal combustion engine having an oxygen concentration sensor for a feedback control of air-fuel ratio, including an intake air temperature sensing means and a control means for operating/stopping the feedback control of air-fuel ratio in accordance with the detected value of the intake air temperature. When the intake air temperature is below a predetermined level, the feedback control is stopped, and an auxiliary fuel supply means is activated, and at the same time a supply of atmospheric air into a slow speed fuel supply system of the engine is stopped. Thus, the air-fuel ratio is controlled to the rich side when the open loop control is selected, in order to secure a stable engine operation.